EP 0685504 B1 20010829 - Polyaspartic acid derivatives and process for preparing the same
Title (en)
Polyaspartic acid derivatives and process for preparing the same
Title (de)
Polyasparaginsäurederivate und Verfahren zu ihrer Herstellung
Title (fr)
Dérivés d'acide polyaspartique et procédé pour leur préparation
Publication
Application
Priority
JP 11698194 A 19940530
Abstract (en)
[origin: EP0685504A2] There are disclosed herein a polymer containing the following monomer unit (I) and/or (II): <CHEM> and a process for preparing the polymer which comprises, in ring opening reaction of the polysuccinimide, opening the ring of polysuccinimide by using an amino acid ester having an extremely high reactivity in place of an alpha -amino acid having an extremely low reactivlty. The polymer of the present invention is characterized by having no irritation to organisms (e.g., eyes and skin), and for example, the polymer is useful in the industrial fields of fields of medical supplies, health, beauty and sanitary aids, quasi-pharmaceuticals, and the like.
IPC 1-7
IPC 8 full level
A61K 8/88 (2006.01); A61Q 5/00 (2006.01); A61Q 5/06 (2006.01); A61Q 19/00 (2006.01); C08G 73/10 (2006.01)
CPC (source: EP US)
A61K 8/88 (2013.01 - EP US); A61Q 5/00 (2013.01 - EP US); A61Q 19/00 (2013.01 - EP US); C08G 73/1092 (2013.01 - EP US); A61Q 5/06 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0685504 A2 19951206; EP 0685504 A3 19960410; EP 0685504 B1 20010829; DE 69522372 D1 20011004; DE 69522372 T2 20020523; US 5571889 A 19961105
DOCDB simple family (application)
EP 95108234 A 19950529; DE 69522372 T 19950529; US 45011795 A 19950525